U.S. patent number 10,143,645 [Application Number 13/696,145] was granted by the patent office on 2018-12-04 for cosmetic compositions containing acrylic thickener.
This patent grant is currently assigned to L'OREAL. The grantee listed for this patent is Hy Si Bui, Mohamed Kanji, Chunhua Li, Dhaval Patel, Geoffrey White. Invention is credited to Hy Si Bui, Mohamed Kanji, Chunhua Li, Dhaval Patel, Geoffrey White.
United States Patent |
10,143,645 |
Li , et al. |
December 4, 2018 |
Cosmetic compositions containing acrylic thickener
Abstract
The invention relates to a composition, especially a cosmetic
composition, comprising at least one acrylic thickener and at least
one oil, as well as to methods of using such compositions.
Inventors: |
Li; Chunhua (Scotch Plains,
NJ), Bui; Hy Si (Piscataway, NJ), Patel; Dhaval
(Edison, NJ), Kanji; Mohamed (Edison, NJ), White;
Geoffrey (Old Bridge, NJ) |
Applicant: |
Name |
City |
State |
Country |
Type |
Li; Chunhua
Bui; Hy Si
Patel; Dhaval
Kanji; Mohamed
White; Geoffrey |
Scotch Plains
Piscataway
Edison
Edison
Old Bridge |
NJ
NJ
NJ
NJ
NJ |
US
US
US
US
US |
|
|
Assignee: |
L'OREAL (Paris,
FR)
|
Family
ID: |
44904479 |
Appl.
No.: |
13/696,145 |
Filed: |
May 5, 2011 |
PCT
Filed: |
May 05, 2011 |
PCT No.: |
PCT/US2011/035361 |
371(c)(1),(2),(4) Date: |
January 11, 2013 |
PCT
Pub. No.: |
WO2011/140341 |
PCT
Pub. Date: |
November 10, 2011 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20130130959 A1 |
May 23, 2013 |
|
Related U.S. Patent Documents
|
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
|
61331609 |
May 5, 2010 |
|
|
|
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61K
8/8158 (20130101); A61K 8/8147 (20130101); A61Q
1/10 (20130101); A61K 8/8152 (20130101); A61K
8/585 (20130101); A61K 8/31 (20130101); A61K
2800/31 (20130101) |
Current International
Class: |
A61K
8/81 (20060101); A61K 8/31 (20060101); A61Q
1/10 (20060101); A61K 8/58 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
0 388582 |
|
Sep 1990 |
|
EP |
|
1 604 632 |
|
Dec 2005 |
|
EP |
|
1 674 076 |
|
Jun 2006 |
|
EP |
|
2005-330203 |
|
Feb 2005 |
|
JP |
|
20070094367 |
|
Sep 2007 |
|
KR |
|
WO 0245662 |
|
Jun 2002 |
|
WO |
|
Other References
SIMULGEL EG Product Specifications.
http://www.seppic.com/cosmetique/polymeres-classiques/epaississant-simulg-
el-eg-@/view-319-seproduit.html?menuid= (accessed May 20, 2013).
cited by examiner .
CARBOPOL 934 Polymer Product Specifications (Published Jun. 26,
2008; accessed May 8, 2013). cited by examiner .
Ethanol MSDS (sigma-aldrich.com), accessed May 31, 2013. cited by
examiner .
Dipropylene glycol MSDS (sigma-aldrich.com), accessed May 31, 2013.
cited by examiner .
ViscUp Ez (www.archpersonalcare.com). Technical information.
Published Feb. 21, 2007. cited by examiner .
Glycerin MSDS (sigma-aldrich.com), accessed May 31, 2013. cited by
examiner .
Bernard, P.; Merat, E.; Braun, O.; Mallo, P. "A New Polymer with a
MAXimum Resistance to Electrolytes" SOFW-Journal, Dec. 2010, 136,
55-58. cited by examiner .
Bernard, P. et al. "A New Polymer with a MAXimum Resistance to
Electrolytes" SOFW-Journal, Dec. 2010, 136, pp. 55-25 (Year: 2010).
cited by examiner .
U.S. Appl. No. 13/101,303, filed May 5, 2011, US2011/0274636 A1,
Perruna, et al. cited by applicant .
U.S. Appl. No. 13/695,917, filed Nov. 2, 2012, Bui, et al. cited by
applicant .
U.S. Appl. No. 13/696,159, filed Nov. 5, 2011, Wahl, et al. cited
by applicant .
International Search Report dated Feb. 8, 2012 in PCT/US11/35361
Filed May 5, 2011. cited by applicant .
U.S. Appl. No. 13/884,518, filed May 9, 2013, Kanji, et al. cited
by applicant .
U.S. Appl. No. 13/884,153, filed May 8, 2013, Li, et al. cited by
applicant .
U.S. Appl. No. 13/884,122, filed May 8, 2013, Li, et al. cited by
applicant .
U.S. Appl. No. 13/340,237, filed Dec. 29, 2011, US2012/0171145 A1,
Bui, et al. cited by applicant .
U.S. Appl. No. 13/341,514, filed Dec. 30, 2011, US2012/0171141 A1,
Bui, et al. cited by applicant .
U.S. Appl. No. 13/341,597, filed Dec. 30, 2011, US2012/0171142 A1,
Bui, et al. cited by applicant .
U.S. Appl. No. 13/988,630, filed May 21, 2013, Li, et al. cited by
applicant .
Office Action as received in the corresponding Chinese Patent
Application No. 201180033311.2 dated Jun. 30, 2014 w/English
Translation. cited by applicant .
European Office Action dated May 16, 2017, in Patent Application
No. 11 778 347.2. cited by applicant .
Supplementary European Search Report as received in the
corresponding EP Patent Application No. 11778347.2-1458/2566441
dated Dec. 2, 2015. cited by applicant .
Database WPI, Week 200603, Thomson Scientific, London, GB; AN
2006-022972, XP002750775. cited by applicant.
|
Primary Examiner: Rosenthal; Andrew S
Attorney, Agent or Firm: Oblon, McClelland, Maier &
Neutadt, L.L.P.
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a National Stage of PCT/US11/035361 filed May
5, 2011 and claims the benefit of priority under 35 U.S.C. .sctn.
119(e) from U.S. Provisional Application Serial No. 61/331,609,
filed May 5, 2010, the entire contents of which is hereby
incorporated by reference.
Claims
What is claimed is:
1. An anhydrous mascara for application to eyelashes comprising
polyacrylate crosspolymer 6; at least one wax; at least one
coloring agent; and 20 to 50% by weight of at least one
non-silicone volatile oil selected from the group consisting of
volatile hydrocarbon oils having 8 to 16 carbon atoms, volatile
esters, volatile ethers, and mixtures thereof, wherein the mascara
comprises less than 1% of water and the mascara is removable from
eyelashes using a second composition consisting essentially of
water.
2. The mascara of claim 1, wherein the polyacrylate crosspolymer 6
and the non-silicone volatile oil(s) are present in a weight ratio
of from 1:2 to 1:20.
3. The mascara of claim 1, wherein the polyacrylate crosspolymer 6
is in powder form.
4. The mascara of claim 1, wherein the polyacrylate crosspolymer 6
is present in an amount of 0.1% to 20% by weight of the weight of
the mascara.
5. A method of making up eyelashes comprising applying the mascara
of claim 1 to the eyelashes.
6. A method of volumizing eyelashes comprising applying the mascara
of claim 1 to the eyelashes.
7. A method of removing the anhydrous mascara according to claim 1
from eyelashes comprising applying water to the mascara in an
amount sufficient to remove the mascara from the eyelashes.
8. The mascara according to claim 1, wherein the mascara further
comprises at least one volatile silicone oil selected from the
group consisting of octamethyltetrasiloxane,
decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane,
heptamethyloctyltrisiloxane, hexamethyldisiloxane,
decamethyltetrasiloxane, dodecamethylpentasiloxane and mixtures
thereof.
9. The mascara according to claim 1, wherein the non-silicone
volatile oil is one or more hydrocarbon oil having from 8 to 16
carbon atoms.
10. The mascara according to claim 1, wherein the non-silicone
volatile oil is selected from the group consisting of propylene
glycol n-butyl ether, ethyl 3-ethoxypropionate, propylene glycol
methylether acetate, and mixtures thereof.
11. The mascara according to claim 1, wherein the at least one
non-silicone volatile oil is present in an amount of from 30 to 40%
by weight, based on the total weight of the mascara.
12. The mascara according to claim 1, wherein the non-silicone
volatile oil is selected from the group consisting of isoparaffin,
isododecane, and mixtures thereof.
13. The mascara according to claim 1, wherein the polyacrylate
crosspolymer 6 and the non-silicone volatile oil(s) are present in
a weight ratio of from 1:3 to 1:15.
14. The mascara according to claim 1, wherein the polyacrylate
crosspolymer 6 and the non-silicone volatile oil(s) are present in
a weight ratio of from 1:4 to 1:12.
15. The mascara according to claim 1, wherein the coloring agent is
at least one pigment.
16. The mascara according to claim 15, wherein the pigment is iron
oxide.
17. The mascara according to claim 15, wherein the pigment is
present in an amount of from 0.5% to 40% by weight, based on the
total weight of the mascara.
18. The mascara according to claim 16, wherein the pigment is
present in an amount of from 0.5% to 40% by weight, based on the
total weight of the mascara.
19. The mascara according to claim 1, wherein the mascara contains
no water.
20. The mascara according to claim 1, wherein the mascara is
capable of providing a visible lengthening effect to eyelashes.
Description
FIELD OF THE INVENTION
The present invention relates to compositions comprising at least
one acrylic thickener. Among other improved or beneficial
properties, compositions containing an acrylic thickener have
surprisingly good removal properties.
DISCUSSION OF THE BACKGROUND
Many cosmetic compositions, including pigmented cosmetics such as
foundations, concealers, lipsticks, and mascaras, and other
cosmetic and sunscreen compositions, have been formulated in an
attempt to posses good feel and texture upon application.
Unfortunately, many of these compositions can be difficult to apply
and do not possess a soft texture or smooth feel upon application.
Moreover, such compositions oftentimes have a tendency to feel
tacky, yielding poor application and spreadability characteristics,
and can be difficult to remove.
Silicone elastomers have been added to cosmetic compositions to
improve the feel of the compositions. However, the use of silicone
elastomers can be problematic, given their expense and that they
can be difficult to formulate owing to their chemical make up--for
example, compositions including silicone elastomers can be
unstable, particularly if uncomplimentary compounds are added to an
elastomer-containing composition.
Thus, there remains a need for improved cosmetic compositions
having improved cosmetic properties, particularly good feel and
texture characteristics upon application, without relying solely
(if at all) upon silicone elastomers, and which can be easily
removed.
Accordingly, one aspect of the present invention is a care and/or
makeup and/or treatment composition for keratinous material which
has good cosmetic properties such as, for example, good feel and/or
texture properties upon application, and/or good removability.
SUMMARY OF THE INVENTION
The present invention relates to compositions comprising at least
one acrylic thickener. Preferably, the compositions are
anhydrous.
The present invention also relates to colored compositions
comprising at least one coloring agent and at least one acrylic
thickener. Such colored compositions can be, for example, cosmetic
compositions such as lip compositions (for example, lipstick or
liquid lip colors), mascaras, eyeshadows or foundations.
Preferably, the compositions are anhydrous.
The present invention also relates to methods of treating, caring
for and/or making up keratinous material (for example, skin, eyes,
eyelashes or lips) by applying compositions of the present
invention comprising at least one acrylic thickener, preferably
anhydrous compositions, to the keratinous material in an amount
sufficient to treat, care for and/or make up the keratinous
material.
The present invention also relates to methods of enhancing the
appearance of keratinous material (for example, skin, eyes,
eyelashes, or lips) by applying compositions of the present
invention comprising at least one acrylic thickener, preferably
anhydrous compositions, to the keratinous material in an amount
sufficient to enhance the appearance of the keratinous
material.
The present invention also relates to methods of volumizing
eyelashes comprising applying a mascara composition of the present
invention comprising at least one acrylic thickener, preferably an
anhydrous mascara composition.
It is to be understood that both the foregoing general description
and the following detailed description are exemplary and
explanatory only, and are not restrictive of the invention.
DETAILED DESCRIPTION OF THE INVENTION
As used herein, the expression "at least one" means one or more and
thus includes individual components as well as
mixtures/combinations.
Other than in the operating examples, or where otherwise indicated,
all numbers expressing quantities of ingredients and/or reaction
conditions are to be understood as being modified in all instances
by the term "about," meaning within 10% to 15% of the indicated
number.
"Film former" or "film forming agent" as used herein means a
polymer or resin that leaves a film on the substrate to which it is
applied, for example, after a solvent accompanying the film former
has evaporated, absorbed into and/or dissipated on the
substrate.
"Transfer resistance" as used herein refers to the quality
exhibited by compositions that are not readily removed by contact
with another material, such as, for example, a glass, an item of
clothing or the skin, for example, when eating or drinking.
Transfer resistance may be evaluated by any method known in the art
for evaluating such. For example, transfer resistance of a
composition may be evaluated by a "kiss" test. The "kiss" test may
involve application of the composition to human keratin material
such as hair, skin or lips followed by rubbing a material, for
example, a sheet of paper, against the hair, skin or lips after
expiration of a certain amount of time following application, such
as 2 minutes after application. Similarly, transfer resistance of a
composition may be evaluated by the amount of product transferred
from a wearer to any other substrate, such as transfer from the
hair, skin or lips of an individual to a collar when putting on
clothing after the expiration of a certain amount of time following
application of the composition to the hair, skin or lips. The
amount of composition transferred to the substrate (e.g., collar,
or paper) may then be evaluated and compared. For example, a
composition may be transfer resistant if a majority of the product
is left on the wearer's hair, skin or lips. Further, the amount
transferred may be compared with that transferred by other
compositions, such as commercially available compositions. In a
preferred embodiment of the present invention, little or no
composition is transferred to the substrate from the hair, skin or
lips.
"Long wear" compositions as used herein, refers to compositions
where color remains the same or substantially the same as at the
time of application, as viewed by the naked eye, after an extended
period of time. Long wear properties may be evaluated by any method
known in the art for evaluating such properties. For example, long
wear may be evaluated by a test involving the application of a
composition to human hair, skin or lips and evaluating the color of
the composition after an extended period of time. For example, the
color of a composition may be evaluated immediately following
application to hair, skin or lips and these characteristics may
then be re-evaluated and compared after a certain amount of time.
Further, these characteristics may be evaluated with respect to
other compositions, such as commercially available
compositions.
"Substituted" as used herein, means comprising at least one
substituent. Non-limiting examples of substituents include atoms,
such as oxygen atoms and nitrogen atoms, as well as functional
groups, such as hydroxyl groups, ether groups, alkoxy groups,
acyloxyalky groups, oxyalkylene groups, polyoxyalkylene groups,
carboxylic acid groups, amine groups, acylamino groups, amide
groups, halogen containing groups, ester groups, thiol groups,
sulphonate groups, thiosulphate groups, siloxane groups, and
polysiloxane groups. The substituent(s) may be further
substituted.
"Volatile", as used herein, means having a flash point of less than
about 100.degree. C.
"Non-volatile", as used herein, means having a flash point of
greater than about 100.degree. C.
"Anhydrous" means the compositions contain less than 1% water.
Preferably, the compositions of the present invention comprising
the at least one acrylic thickener contain no water.
The compositions discusses below may be in any form, either liquid
or non-liquid (semi-solid, soft solid, solid, etc.). For example,
they may be a paste, a solid, a gel, or a cream. They may be an
emulsion, such as an oil-in-water or water-in-oil emulsion, a
multiple emulsion, such as an oil-in-water-in-oil emulsion or a
water-in-oil-in-water emulsion, or a solid, rigid or supple gel.
The compositions of the invention may, for example, comprise an
external or continuous fatty phase. The compositions can also be a
molded composition or cast as a stick or a dish.
Depending on the intended application, such as a stick, hardness of
the composition may also be considered. The hardness of a
composition may, for example, be expressed in gramforce (gf). The
composition of the present invention may, for example, have a
hardness ranging from 20 gf to 2000 gf, such as from 20 gf to 900
gf, and further such as from 20 gf to 600 gf.
This hardness is measured in one of two ways. A first test for
hardness is according to a method of penetrating a probe into the
composition and in particular using a texture analyzer (for example
TA-XT2i from Rheo) equipped with an ebonite cylinder of height 25
mm and diameter 8 mm. The hardness measurement is carried out at
20.degree. C. at the center of 5 samples of the composition. The
cylinder is introduced into each sample of composition at a
pre-speed of 2 mm/s and then at a speed of 0.5 mm/s and finally at
a post-speed of 2 mm/s, the total displacement being 1 mm. The
recorded hardness value is that of the maximum peak observed. The
measurement error is .+-.50 gf.
The second test for hardness is the "cheese wire" method, which
involves cutting an 8.1 mm or preferably 12.7 mm in diameter stick
composition and measuring its hardness at 20.degree. C. using a
DFGHS 2 tensile testing machine from Indelco-Chatillon Co. at a
speed of 100 mm/minute. The hardness value from this method is
expressed in grams as the shear force required to cut a stick under
the above conditions. According to this method, the hardness of
compositions according to the present invention which may be in
stick form may, for example, range from 30 gf to 300 gf, such as
from 30 gf to 250 gf, for a sample of 8.1 mm in diameter stick, and
further such as from 30 gf to 200 gf, and also further such as from
30 gf to 120 gf for a sample of 12.7 mm in diameter stick.
The hardness of the composition of the present invention may be
such that the compositions are self-supporting and can easily
disintegrate to form a satisfactory deposit on keratin materials.
In addition, this hardness may impart good impact strength to the
inventive compositions, which may be molded or cast, for example,
in stick or dish form.
The skilled artisan may choose to evaluate a composition using at
least one of the tests for hardness outlined above based on the
application envisaged and the hardness desired. If one obtains an
acceptable hardness value, in view of the intended application,
from at least one of these hardness tests, the composition falls
within preferred embodiments of the invention.
As defined herein, stability is tested by placing the composition
in a controlled environment chamber for 8 weeks at 25.degree. C. In
this test, the physical condition of the sample is inspected as it
is placed in the chamber. The sample is then inspected again at 24
hours, 3 days, 1 week, 2 weeks, 4 weeks and 8 weeks. At each
inspection, the sample is examined for abnormalities in the
composition such as phase separation if the composition is in the
form of an emulsion, bending or leaning if the composition is in
stick form, melting, or syneresis (or sweating). The stability is
further tested by repeating the 8-week test at 25.degree. C.,
37.degree. C., 45.degree. C. and under freeze-thaw conditions. A
composition is considered to lack stability if in any of these
tests an abnormality that impedes functioning of the composition is
observed. The skilled artisan will readily recognize an abnormality
that impedes functioning of a composition based on the intended
application.
The cosmetic compositions and methods of the present invention can
comprise, consist of, or consist essentially of the essential
elements and limitations of the invention described herein, as well
as any additional or optional ingredients, components, or
limitations described herein or otherwise useful in personal
care.
Acrylic Thickener
According to the present invention, compositions comprising at
least one acrylic thickener are provided. "Acrylic thickener" as
used herein refers to polymers based upon one or more (meth)acrylic
acid (and corresponding (meth)acrylate) monomers or similar
monomers.
According to preferred embodiments, the acrylic thickener is an
anionic acrylic polymer comprising at least one monomer performing
a weak acid function such as, for example, acrylic acid,
methacrylic acid, itaconic acid, crotonic acid, maleic acid and/or
fumaric acid.
According to preferred embodiments, the acrylic thickener is an
anionic acrylic polymer further comprising at least one monomer
performing a strong acid function such as, for example, monomers
having a function of the sulfonic acid type or phosphonic acid
type, such as 2-acrylamido-2-methylpropane sulfonic acid
(AMPS).
According to preferred embodiments, the anionic acrylic polymer may
be crosslinked (or branched). Suitable examples of acceptable
crosslinking agents include, but are not limited to, methylene
bisacrylamide (MBA), ethylene glycol diacrylate, polyethylene
glycol dimethacrylate, diacrylamide, cyanomethacrylate,
vinyloxyethacrylate or methacrylate, formaldehyde, glyoxal, and
compositions of the glycidylether type such as ethyleneglycol
diglycidylether, or epoxydes.
Particularly preferred acrylic thickeners are disclosed in U.S.
patent application publication nos. 2004/0028637 and 2008/0196174,
the entire contents of both of which are incorporated herein by
reference. Particularly preferred acrylic thickeners are sodium
acrylate/sodium acryloyldimethyl taurate copolymers.
A particularly preferred commercially available product containing
an acrylic thickener is that sold under the INCI name Sodium
Acrylate/Sodium Acryloyldimethyl Taurate Copolymer &
Hydrogenated Polydecene & Sorbitan Laurate & Trideceth-6
which is marketed by Arch Personal Care Products, South Plainfield,
N.J., USA under the tradename ViscUp.RTM.EZ. Other commercially
available products include SEPPIC's Sepiplus S (hydroxyethyl
acrylate sodium acryloyldimethyl taurate copolymer and
polyisobutene and PEG-7 trimethyloylpropane coconut ether) and
Sepinov EMT 10 (hydroxyethyl acrylate sodium acryloyldimethyl
taurate copolymer).
According to preferred embodiments of the present invention, the
acrylic thickener is in powder form. Suitable examples of such a
thickener include Sepinov EMT 10 discussed above and Sepimax Zen
(polyacrylate crosspolymer 6).
According to preferred embodiments of the present invention, the
acrylic thickener comprises an acrylamide monomer. For example,
SEPPIC's Simulgel 600 (acrylamide/sodium acryloyldimethyltaurate
copolymer/isohexadecane/polysorbate 80) is an acceptable
thickener.
Preferably, the acrylic thickener(s) represent from about 0.1% to
about 20% of the total weight of the composition, more preferably
from about 1% to about 10% of the total weight of the composition,
and most preferably from about 2.5% to about 7.5% of the total
weight of the composition, including all ranges and subranges
therebetween.
Oil
According to the present invention, compositions comprising at
least one oil are provided. "Oil" means any non-aqueous medium
which is liquid at ambient temperature (25.degree. C.) and
atmospheric pressure (760 mm Hg).
Suitable oils include volatile and/or non-volatile oils. Such oils
can be any acceptable oil including but not limited to silicone
oils and/or hydrocarbon oils.
According to certain embodiments, the composition of the present
invention preferably comprise one or more volatile silicone oils.
Examples of such volatile silicone oils include linear or cyclic
silicone oils having a viscosity at room temperature less than or
equal to 6 cSt and having from 2 to 7 silicon atoms, these
silicones being optionally substituted with alkyl or alkoxy groups
of 1 to 10 carbon atoms. Specific oils that may be used in the
invention include octamethyltetrasiloxane,
decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane,
heptamethyloctyltrisiloxane, hexamethyldisiloxane,
decamethyltetrasiloxane, dodecamethylpentasiloxane and their
mixtures. Other volatile oils which may be used include KF 96A of 6
cSt viscosity, a commercial product from Shin Etsu having a flash
point of 94.degree. C. Preferably, the volatile silicone oils have
a flash point of at least 40.degree. C.
Non-limiting examples of volatile silicone oils are listed in Table
1 below.
TABLE-US-00001 TABLE 1 Flash Point Viscosity Compound (.degree. C.)
(cSt) Octyltrimethicone 93 1.2 Hexyltrimethicone 79 1.2
Decamethylcyclopentasiloxane 72 4.2 (cyclopentasiloxane or D5)
Octamethylcyclotetrasiloxane 55 2.5 (cyclotetradimethylsiloxane or
D4) Dodecamethylcyclohexasiloxane (D6) 93 7 Decamethyltetrasiloxane
(L4) 63 1.7 KF-96 A from Shin Etsu 94 6 PDMS (polydimethylsiloxane)
DC 200 56 1.5 (1.5 cSt) from Dow Corning PDMS DC 200 (2 cSt) from
Dow Corning 87 2
Further, a volatile linear silicone oil may be employed in the
present invention. Suitable volatile linear silicone oils include
those described in U.S. Pat. No. 6,338,839 and WO03/042221, the
contents of which are incorporated herein by reference. In one
embodiment the volatile linear silicone oil is
decamethyltetrasiloxane. In another embodiment, the
decamethyltetrasiloxane is further combined with another solvent
that is more volatile than decamethyltetrasiloxane.
According to other embodiments, the composition of the present
invention preferably comprises one or more non-silicone volatile
oils and may be selected from volatile hydrocarbon oils, volatile
esters and volatile ethers. Examples of such volatile non-silicone
oils include, but are not limited to, volatile hydrocarbon oils
having from 8 to 16 carbon atoms and their mixtures and in
particular branched C.sub.8 to C.sub.16 alkanes such as C.sub.8 to
C.sub.16 isoalkanes (also known as isoparaffins), isododecane,
isodecane, and for example, the oils sold under the trade names of
Isopar or Permethyl. Preferably, the volatile non-silicone oils
have a flash point of at least 40.degree. C.
Non-limiting examples of volatile non-silicone volatile oils are
given in Table 2 below.
TABLE-US-00002 TABLE 2 Compound Flash Point (.degree. C.)
Isododecane 43 Propylene glycol n-butyl ether 60 Ethyl
3-ethoxypropionate 58 Propylene glycol methylether acetate 46
Isopar L (isoparaffin C.sub.11-C.sub.13) 62 Isopar H (isoparaffin
C.sub.11-C.sub.12) 56
The volatility of the solvents/oils can be determined using the
evaporation speed as set forth in U.S. Pat. No. 6,338,839, the
contents of which are incorporated by reference herein.
According to other embodiments of the present invention, the
composition comprises at least one non-volatile oil. Examples of
non-volatile oils that may be used in the present invention
include, but are not limited to, polar oils such as:
hydrocarbon-based plant oils with a high triglyceride content
consisting of fatty acid esters of glycerol, the fatty acids of
which may have varied chain lengths, these chains possibly being
linear or branched, and saturated or unsaturated; these oils are
especially wheat germ oil, corn oil, sunflower oil, karite butter,
castor oil, sweet almond oil, macadamia oil, apricot oil, soybean
oil, rapeseed oil, cottonseed oil, alfalfa oil, poppy oil, pumpkin
oil, sesame seed oil, marrow oil, avocado oil, hazelnut oil, grape
seed oil, blackcurrant seed oil, evening primrose oil, millet oil,
barley oil, quinoa oil, olive oil, rye oil, safflower oil,
candlenut oil, passion flower oil or musk rose oil; or
caprylic/capric acid triglycerides, for instance those sold by the
company Stearineries Dubois or those sold under the names Miglyol
810, 812 and 818 by the company Dynamit Nobel; synthetic oils or
esters of formula R.sub.5COOR.sub.6 in which R.sub.5 represents a
linear or branched higher fatty acid residue containing from 1 to
40 carbon atoms, including from 7 to 19 carbon atoms, and R.sub.6
represents a branched hydrocarbon-based chain containing from 1 to
40 carbon atoms, including from 3 to 20 carbon atoms, with
R.sub.6+R.sub.7.gtoreq.10, such as, for example, Purcellin oil
(cetostearyl octanoate), isononyl isononanoate, C.sub.12 to
C.sub.15 alkyl benzoate, isopropyl myristate, 2-ethylhexyl
palmitate, and octanoates, decanoates or ricinoleates of alcohols
or of polyalcohols; hydroxylated esters, for instance isostearyl
lactate or diisostearyl malate; and pentaerythritol esters;
synthetic ethers containing from 10 to 40 carbon atoms; C.sub.8 to
C.sub.26 fatty alcohols, for instance oleyl alcohol, cetyl alcohol,
stearyl alcohol, and cetearly alcohol; and mixtures thereof.
Further, examples of non-volatile oils that may be used in the
present invention include, but are not limited to, non-polar oils
such as branched and unbranched hydrocarbons and hydrocarbon waxes
including polyolefins, in particular Vaseline (petrolatum),
paraffin oil, squalane, squalene, hydrogenated polyisobutene,
hydrogenated polydecene, polybutene, mineral oil,
pentahydrosqualene, and mixtures thereof.
According to preferred embodiments of the present invention, the
oil is a high viscosity oil which is a silicone oil and/or a
hydrocarbon oil. "High viscosity" means an oil having a viscosity
greater than 250 cSt at 25.degree. C.
Suitable examples of such silicone oils include, but are not
limited to, non-volatile silicone fluids such as, for example,
polyalkyl (aryl) siloxanes. Suitable polyalkyl siloxanes include,
but are not limited to, polydimethyl siloxanes, which have the CTFA
designation dimethicone, polydiethyl siloxane, phenyl trimethicone,
trimethyl pentaphenyl trisiloxane, phenyldimethicone,
phenyltrimethylsiloxydiphenylsiloxane, diphenyldimethicone, and
diphenylmethyldiphenyltrisiloxane and those siloxanes disclosed in
U.S. patent application publication no. 2004/0126350, the entire
disclosure of which is hereby incorporated by reference. Specific
examples of suitable high viscosity silicone oils include, but are
not limited to, 15 M 30 from PCR (500 cSt) or Belsil PDM 1000 (1
000 cSt) from Wacker and Dow Corning 200 (350 cSt) (the values in
parenthesis represent viscosities at 25.degree. C.).
Suitable examples of such hydrocarbon oils include, but are not
limited to, fluids having a molecular mass of more than 500 g/mol,
for example more than 600 g/mol, and for example more than 650
g/mol. By "hydrocarbon" compound, it is meant a compound comprising
principally atoms of carbon and hydrogen and optionally one or more
functional groups chosen from hydroxyl, ester, ether and carboxyl
functions. These compounds are, according to one aspect, devoid of
--Si--O-- groups. Suitable examples of hydrocarbon fluids include,
but are not limited to polybutylenes, such as Indopol H-100 (of
molar mass or MM=965 g/mol), Indopol H-300 (MM=1 340 g/mol), and
Indopol H-1500 (MM=2 160 g/mol), which are sold or manufactured by
Amoco; hydrogenated polyisobutylenes, such as Panalane H-300 E,
sold or manufactured by Amoco (M=1 340 g/mol), Viseal 20000 sold or
manufactured by Synteal (MM=6 000 g/mol), and Rewopal PIB 1000,
sold or manufactured by Witco (MM=1 000 g/mol); polydecenes and
hydrogenated polydecenes, such as Puresyn 10 (MM=723 g/mol) and
Puresyn 150 (MM=9 200 g/mol) sold or manufactured by Mobil
Chemicals; esters such as linear fatty acid esters having a total
carbon number ranging from 30 to 70, such as pentaerythrityl
tetrapelargonate (MM=697.05 g/mol); hydroxy esters, such as
diisostearyl malate (MM=639 g/mol); aromatic esters such as
tridecyl trimellitate (MM=757.19 g/mol); esters of C24-C28 branched
fatty acids or fatty alcohols, such as those described in EP-A-0
955 039, for example triisocetyl citrate (MM=856 g/mol),
pentaerythrityl tetraisononanoate (MM=697.05 g/mol), glyceryl
triisostearate (MM=891.51 g/mol), glyceryl 2-tridecyltetradecanoate
(MM=1 143.98 g/mol), pentaerythrityl tetraisostearate (MM=1 202.02
g/mol), poly-2-glyceryl tetraisostearate (MM=1 232.04 g/mol) and
pentaerythrityl 2-tetradecyltetradecanoate (MM=1 538.66 g/mol); and
mixtures thereof. Suitable ester oils can also be described
according to formula R.sub.1COOR.sub.2 in which R.sub.1 represents
a linear or branched higher fatty acid residue containing from 1 to
40 carbon atoms, including from 7 to 19 carbon atoms, and R.sub.2
represents a branched hydrocarbon-based chain containing from 1 to
40 carbon atoms, including from 3 to 20 carbon atoms, with
R.sub.1+R.sub.2.gtoreq.10, such as, for example, Purcellin oil
(cetostearyl octanoate), isononyl isononanoate, C.sub.12 to
C.sub.15 alkyl benzoate, isopropyl myristate, 2-ethylhexyl
palmitate, and octanoates, decanoates or ricinoleates of alcohols
or of polyalcohols; hydroxylated esters, for instance isostearyl
lactate or diisostearyl malate; and pentaerythritol esters. A
particularly preferred ester is diisostearyl malate.
According to preferred embodiments, the at least one oil is present
in the compositions of the present invention in an amount ranging
from about 10 to about 65% by weight, more preferably from about 20
to about 50% by weight, and most preferably from about 30 to about
40% by weight, based on the total weight of the composition,
including all ranges and subranges within these ranges.
According to preferred embodiments, the acrylic thickener and the
oil(s) are present in the compositions of the present invention in
a weight ratio of 1:2 to 1:20, preferably 1:3 to 1:15, and
preferably 1:4 to 1:12, including all ranges and subranges
therebetween.
Coloring Agents
According to preferred embodiments of the present invention,
compositions further comprising at least one coloring agent are
provided. Preferably, such colored compositions can be cosmetic
compositions such as, for example, lip compositions (for example,
lipstick or liquid lip colors), mascaras, nail polish or
foundations.
According to this embodiment, the at least one coloring agent is
preferably chosen from pigments, dyes, such as liposoluble dyes,
nacreous pigments, and pearling agents.
Representative liposoluble dyes which may be used according to the
present invention include Sudan Red, DC Red 17, DC Green 6,
.beta.-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet
2, DC Orange 5, annatto, and quinoline yellow. The liposoluble
dyes, when present, generally have a concentration ranging up to
20% by weight of the total weight of the composition, such as from
0.0001% to 6%, including all ranges and subranges therebetween.
The nacreous pigments which may be used according to the present
invention may be chosen from white nacreous pigments such as mica
coated with titanium or with bismuth oxychloride, colored nacreous
pigments such as titanium mica with iron oxides, titanium mica with
ferric blue or chromium oxide, titanium mica with an organic
pigment chosen from those mentioned above, and nacreous pigments
based on bismuth oxychloride. The nacreous pigments, if present, be
present in the composition in a concentration ranging up to 50% by
weight of the total weight of the composition, such as from 0.1% to
20%, preferably from 0.1% to 15%, including all ranges and
subranges therebetween.
The pigments, which may be used according to the present invention,
may be chosen from white, colored, inorganic, organic, polymeric,
nonpolymeric, coated and uncoated pigments. Representative examples
of mineral pigments include titanium dioxide, optionally
surface-treated, zirconium oxide, zinc oxide, cerium oxide, iron
oxides, chromium oxides, manganese violet, ultramarine blue,
chromium hydrate, and ferric blue. Representative examples of
organic pigments include carbon black, pigments of D & C type,
and lakes based on cochineal carmine, barium, strontium, calcium,
and aluminum.
If present, the pigments may be present in the composition in a
concentration ranging up to 50% by weight of the total weight of
the composition, such as from 0.5% to 40%, and further such as from
2% to 30%, including all ranges and subranges therebetween. In the
case of certain products, the pigments, including nacreous
pigments, may, for example, represent up to 50% by weight of the
composition.
Additional Additives
The composition of the invention can also comprise any additive
usually used in the field under consideration. For example,
dispersants such as poly(12-hydroxystearic acid), antioxidants,
film forming agents, essential oils, sunscreens, preserving agents,
fragrances, fillers, neutralizing agents, cosmetic and
dermatological active agents such as, for example, emollients,
moisturizers, vitamins, essential fatty acids, surfactants,
silicone elastomers, pasty compounds, viscosity increasing agents
such as waxes or liposoluble/lipodispersible polymers, and mixtures
thereof can be added. A non-exhaustive listing of such ingredients
can be found in U.S. patent application publication no.
2004/0170586, the entire contents of which is hereby incorporated
by reference. Further examples of suitable additional components
can be found in the other references which have been incorporated
by reference in this application. Still further examples of such
additional ingredients may be found in the International Cosmetic
Ingredient Dictionary and Handbook (9.sup.th ed. 2002).
A person skilled in the art will take care to select the optional
additional additives and/or the amount thereof such that the
advantageous properties of the composition according to the
invention are not, or are not substantially, adversely affected by
the envisaged addition.
These substances may be selected variously by the person skilled in
the art in order to prepare a composition which has the desired
properties, for example, consistency or texture.
These additives may be present in the composition in a proportion
from 0% to 99% (such as from 0.01% to 90%) relative to the total
weight of the composition and further such as from 0.1% to 50% (if
present), including all ranges and subranges therebetween.
Needless to say, the composition of the invention should be
cosmetically or dermatologically acceptable, i.e., it should
contain a non-toxic physiologically acceptable medium and should be
able to be applied to the eyelashes of human beings.
According to preferred embodiments, the compositions of the present
invention contain less than 10% wax, preferably less than 5% wax,
preferably less than 3% wax, preferably less than 2% wax, and
preferably less than 1% wax.
According to preferred embodiments of the present invention,
methods of treating, caring for and/or making up keratinous
material such as skin, lips, eyes and eyelashes by applying
compositions of the present invention to the keratinous material in
an amount sufficient to treat, care for and/or make up the
keratinous material are provided. Preferably, "making up" the
keratin material includes applying at least one coloring agent to
the keratin material in an amount sufficient to provide color to
the keratin material.
According to yet other preferred embodiments, methods of enhancing
the appearance of keratinous material by applying compositions of
the present invention to the keratinous material in an amount
sufficient to enhance the appearance of the keratinous material are
provided.
In accordance with the preceding preferred embodiments, the
compositions of the present invention comprising at least one
acrylic thickener are applied topically to the desired area of the
keratin material in an amount sufficient to treat, care for and/or
make up the keratinous material, to cover or hide defects
associated with keratinous material, skin imperfections or
discolorations, or to enhance the appearance of keratinous
material. The compositions may be applied to the desired area as
needed, preferably once or twice daily, more preferably once daily
and then preferably allowed to dry before subjecting to contact
such as with clothing or other objects (for example, a glass or a
topcoat). Preferably, the composition is allowed to dry for about 1
minute or less, more preferably for about 45 seconds or less. The
composition is preferably applied to the desired area that is dry
or has been dried prior to application, or to which a basecoat has
been previously applied.
According to other embodiments of the present invention, methods of
volumizing eyelashes are provided. These methods comprise applying
a mascara composition of the present invention comprising at least
one acrylic thickener to eyelashes.
According to other embodiments of the present invention,
compositions having improved cosmetic properties such as, for
example, increased removal properties are provided. Such
compositions comprise at least one acrylic thickener. The improved
removal properties result from the presence of the acrylic
thickener. Exposure to substantial amounts of water causes the
acrylic thickener to breakdown and the applied composition to
breakdown, resulting in easier removal of the applied composition
as discussed below.
According to preferred embodiments of the present invention, the
compositions of the present invention can be removed using water or
a composition comprising water. For example, the composition
comprising water can be a "topcoat" containing water which, when
applied to the mascara compositions of the present invention,
facilitates removal of the mascara from the eyelashes. The amount
of water to which the applied composition is exposed is sufficient
to cause the acrylic thickener to breakdown to facilitate removal
of the applied composition. Generally speaking, the amount of water
applied to facilitate removal is preferably between 5 and 20 grams
of water, preferably between 6 and 15 grams of water, and
preferably between 7 and 10 grams of water.
According to preferred embodiments, the composition of the present
invention and the water-containing composition (for example,
topcoat) are present in a kit.
Unless otherwise indicated, all numbers expressing quantities of
ingredients, reaction conditions, and so forth used in the
specification and claims are to be understood as being modified in
all instances by the term "about." Accordingly, unless indicated to
the contrary, the numerical parameters set forth in the following
specification and attached claims are approximations that may vary
depending upon the desired properties sought to be obtained by the
present invention.
Notwithstanding that the numerical ranges and parameters setting
forth the broad scope of the invention are approximations, the
numerical values set forth in the specific examples are reported as
precisely as possible. Any numerical value, however, inherently
contain certain errors necessarily resulting from the standard
deviation found in their respective measurements. The following
examples are intended to illustrate the invention without limiting
the scope as a result. The percentages are given on a weight
basis.
EXAMPLE 1
Comparative Mascaras
TABLE-US-00003 Control 1 Control 2 Inventive Phase Chemical Name %
% % A1 ETHYLENEDIAMINE/STEARYL 1 1 1 DIMER DILINOLEATE COPOLYMER A1
Carnauba Wax 4.7 4.7 4.7 A1 Bees Wax 8.3 8.3 8.3 A1 ALLYL
STEARATE/VA COPOLYMER 3.3 3.3 3.3 A1 Polyvinyl Laurate 2.2 2.2 2.2
A1 Hydrogenated Jojoba Oil 0.1 0.1 0.1 A1 Rice Bran Wax 2.8 2.8 2.8
A1 VP/EICOSENE COPOLYMER 2 2 2 A1 Paraffin 2.8 2.8 2.8 A1 Propyl
Paraben 0.19 0.19 0.19 A1 Methyl Paraben 0.15 0.15 0.15 A2 Talc 1 1
1 A2 Black Iron Oxide 4.2 4.2 4.2 A3 Isododecane 42.56 35.06 37.56
B1 Bentone 5.8 5.8 5.8 B2 Polysorbate 20 2.66 2.66 2.66 B3
Polysorbate 80 5.34 5.34 5.34 C Propylene Carbonate 1.9 1.9 1.9 D
SODIUM ACRYLATE/SODIUM 0 0 5 ACRYLOYLDIMETHYLTAURATE COPOLYMER
(and) SORBITAN LAURATE (and) TRIDECETH-6 (Viscup) D
ACRYLAMIDE/SODIUM 0 7.5 0 ACRYLOYLDIMETHYLTAURATE COPOLYMER (and)
ISOHEXADECANE (and) POLYSORBATE 80 (Simulgel) E COPERNICIA CERIFERA
(CARNAUBA) WAX 7 7 7 (and) PEG-30 GLYCERYL STEARATE F Denatured
Alcohol 2 2 2 Total 100 100 100
Procedure (1) Combined A1, A2 and A3, heated to 90-95.degree. C.
Homogenized for 30 mins until pigments were dispersed (2) Added B1,
mixed until dissolved, about 15 mins. Then Added B2 and B3, mix for
10 mins. (3) Added C, Mixed for 10 mins. (4) Added D, Mixed for 10
Mins. (5) Switched to Paddle Mixing, Added E and F at 30-35.degree.
C. (6) Dropped Batch at 25.degree. C.
Experiment Results
Effect of Water-sensitive Material on Removability
Mascaras were applied on fake lashes and dried for 1 hour. Then the
fake lashes were immersed into water for 15 minutes. For 0% water
sensitive material formula (control), mascara remained on the fake
lashes and the water was clear. Similar results were found for the
composition containing 5% Polysorbate 80. For the formula
containing 7.5% Simulgel, mascara was partially removed into the
water. For the formula representative of the invention having 5%
Viscup-EZ, an even better removability was found: a higher % of
mascara swelled into water and formed tube shape.
Demonstration of Tube Removal
Mascara was applied on fake lashes and dried for 1 hour. Then the
fake lashes were immersed into water for 15 minutes. Subsequently
the mascara was removed by a cotton pad and tubes were observed on
the pad.
EXAMPLES 2-4
Mascaras
TABLE-US-00004 Example 2 Base Composition Chemical Name Phase
Percent Isododecane A 35.3 Bentonite A 5.5 Benzoic Acid A 0.1 Black
Iron Oxide A 6 Talc A 1 Carnauba Wax A 4.9 Paraffin A 7.9
Microcrystalline Wax A 8 Viscup-EZ A 5 Polysorbate-20 A 1 Propylene
Carbonate B 1.8 76.5
Example 2 Mascara Compositions
TABLE-US-00005 Chemical Name Phase Percent Isododecane A 23.5 Base
B 76.5 100 Isododecane A 22.32 MQ Resin A 1 KP 561 P A 0.18 Base B
76.5 100 Isododecane A 20.56 MQ Resin A 2.5 KP 561 P A 0.44 Base B
76.5 100 Isododecane A 17.62 MQ ResinBase A 5 KP 561 P A 0.88 Base
B 76.5 100 Isododecane A 0 MQ Resin A 20 KP 561 P A 3.5 Base B 76.5
100
TABLE-US-00006 Example 3 Chemical Name Phase Percent Isododecane A
46.96 Bentonite A 6.5 Benzoic Acid A 0.1 Black Iron Oxide A 6 Talc
A 3.5 Uniclear A 1 Carnauba Wax A 4.9 Paraffin A 7.9
Microcrystalline Wax A 8 Kobo Guard A 4 Viscup-EZ A 5
Polysorbate-20 A 1 Propylene Carbonate B 2.14 Mexoryl SAP C 3
100
Example 3 Procedure: 1) Combine all of A, heat to 95.degree. C. and
homogenize for 1 hour. 2) Add B and homogenize for 10 minutes.
Switch to paddle mixing. 3) Add C at 40.degree. C., mix until batch
reaches 25.degree. C.
TABLE-US-00007 Example 4 Base Composition Chemical Name Phase
Percent Isododecane A 46.96 Bentonite A 6.5 Benzoic Acid A 0.1
Black Iron Oxide A 6 Talc A 3.5 Kobo Guard B 4 Polysorbate-20 B 1
Propylene Carbonate B 2.14 Uniclear C 1 Carnauba Wax C 4.9 Paraffin
C 7.9 Microcrystalline Wax C 8 Mexoryl SAP D 3 95
Example 4 Mascara Compositions
TABLE-US-00008 Simulgel 600 A 5 Isododecane A 0 Base B 95 100
Sepiplus S Isododecane A 0 Base B 95 100 Sepinov emt10 A 5
Isododecane A 0 Base B 95 100 Sepimax Zen A 1.5 Isododecane A 3.5
Base B 95 100
EXAMPLE 5
Application of Mascara to Eyelashes
The following mascara was prepared
TABLE-US-00009 Chemical Name Phase Concentration Isododecane A
46.96 Distearyl Dimethyl A 6.5 Ammonium Hectorite Colorant A 6 Talc
A 3.5 Anox 20 A 1 Carnauba Wax A 4.9 Paraffin (refined, A 7.9
protected) Microcrystalline Wax A 8 Hydrogenated A 4
Polycyclopentadiene and isododecane Sodium acrylate/sodium A 5
acryloydimethyl taurate copolymer & hydrogenated polydecene
& sorbitan laurate & trideceth-6 Oxyethylene (20) sorbitan
A 1 monolaurate Propylene carbonate B 2.14 Carnauba wax C 3
microdispersion
The formulation was applied and studied as discussed below.
Test 1
Objective: To evaluate women perception on immediate cosmetic
aspects, application, make up results, wear and comfort
Methodology: Semi qualitative interviews, monadic test
Parameters: Perception, application, make-up results, wear and
comfort
Evaluation time: Upon application and 3 days home usage
Target: 10 women between 20 to 40 years.
Mascara usage frequency--At least once per week.
5 regular users of waterproof and 5 users of non water proof black
mascara
Users of Mix Brands
Conclusion
TABLE-US-00010 ATTRIBUTES PRINCIPAL QUALITIES OF OTHER IMPORTANCE
THE INVENTION MASCARA OBSERVATIONS VERY Lashes well separated None
IMPORTANT Visible lengthening effect Long wear - around 7 to 8
hours without any smudge particles and need to retouch SOMEWHAT
Easy and even spreading No outstanding IMPORTANT Narrow brush
bristles that volume effect, need to gives an even distribution
apply several strokes with good volume for desired result. Light
and comfortable feel Not easy removal - through the day. irritation
and loss of Easy removal - with water/ few eye-lashes while face
wash/cleansing milk. removal.
Test 2
Objective: To evaluate women's perceptions on immediate cosmetic
aspects, application, make up results, wear and comfort.
Methodology: Semi qualitative interviews, Monadic test
Parameters: Perception, application, make-up results, wear and
comfort
Evaluation time: Upon application and 3 days home usage
Target: 10 women aged 20-35
Regular users of waterproof, black mascara with at least 4
times/week. Users of mass brands only. Mascara with comb brush or
double-end is excluded
Conclusion
TABLE-US-00011 ATTRIBUTES OTHER IMPORTANCE PRINCIPAL QUALITIES
OBSERVATIONS VERY Lashes well separated None IMPORTANT Long wear
around 10-13 hours i.e. no particle, no smudge, no need for
retouching during the day Easy removal with water i.e. mascara come
off melting as ink, no need to pull lashes Visible lengthening
effect Dry quickly i.e. no messiness/smudge on eyelids or under
eyes SOMEWHAT Easy spreading i.e. smooth, Not outstanding volume
IMPORTANT even spreading from roots to effect, need to apply tips,
no clump of mascara on several strokes for lashes desired result.
Curved brush - fit eye shapes Too short bristles making it easy to
apply perceived to be a cause Narrow-teeth bristles - help of less
outstanding separate lashes and able to volume effect. access to
each lash
Test 3
Parameters
Application, sensation, makeup result and daytime wearing
Experimental Methods:
One week home-use methods
Application Panel:
In the women's usual makeup routine
10 women of 20-45 years old who use brush-type black waterproof
mascara more than 5 days a week, and expect `lengthening` effect
from mascara
Evaluation Time:
After one week home-use
Major Characteristics:
TABLE-US-00012 Level of POSITIVE NEGATIVE importance (+) (-) Very
Easy to remove Brush applicator made strong application difficult
Somewhat Did not smudge under the Gave an uneven distribution to
strong eyes during the day the lashes Lengthened the lashes, Did
not provide lash separation along with thickening the lashes
moderately Spread smoothly Flaked off during the day
Test 4
Method and Protocol
Method: Semi-qualitative interviews
Parameters: Application, perceptions, make-up result, wear and
comfort
Experimental method: Monadic test
Panel: 10 women (20-40 year old) who use mass brand black washable
mascara at least 5 times weekly
Evaluation time: Upon application and 3 days home usage
Conclusion
TABLE-US-00013 ATTRIBUTES IMPORTANCE PRINCIPAL QUALITIES OTHER
OBSERVATIONS VERY Long wear of make-up results Poor lengthening
IMPORTANT for 8-10 hours effect Smudge-proof Not volume enough Good
separation lash by lash without clumps, lashes do not stick
together Easy to remove with warm water/usual cleanser/remover
Darkening effect SOMEWHAT A little curling effect Easy to smudge
IMPORTANT eyelids when blinking eyes due to slow dryness and too
wet texture
* * * * *
References